The guys at Instructables have come up with yet another great tutorial to add some USB gadgetry to your closet.球员在instructables想出了又一次伟大的补习添加一些USB电子产品到您的壁橱。 This time we take a look at building a USB telescope from an old analog zoom lens,这个时候，我们考虑一下建设一个USB望远镜从旧的模拟变焦镜头， webcam网路摄影机 and PVC piping for housing.和聚氯乙烯管道房屋。 Reading through the instructions, the USB tutorial is a seven step process.读通过的指示时， USB补习社是一个七步骤。 You will need some prep work done at the hardware store and have your zoom lens and webcam available (both items can be found on eBay for under $15 each).您将需要一些准备工作，在硬件存储和您的变焦镜头和摄像头可用（这两个项目可以发现在eBay上为下15元每个） 。 Here is a video summary:这里是一个视频摘要：

For the full为充分 USB Telescope tutorial补习的USB望远镜 make the jump.使跳转。